Solve the problem.
-If the radius of the earth is approximately 3960 miles, what is the linear speed of a point on the equator in miles per hour. Round your answer to the nearest mph.
A) $1037 \mathrm { mph }$
B) $1681 \mathrm { mph }$
C) $2073 \mathrm { mph }$
D) $840 \mathrm { mph }$

Question

Quizplus · Accepted Answer

The linear speed $v$ of a point on the equator can be calculated using the formula $v = \frac{2\pi r}{T}$, where $r$ is the radius of the Earth and $T$ is the period of rotation (24 hours). Substituting $r = 3960$ miles and $T = 24$ hours, we get $v \approx 1037$ mph.

Solve the Problem 1037mph1037 \mathrm { mph }1037mph B) 1681mph1681 \mathrm { mph }1681mph

Solve the Problem $1037 \mathrm { mph }$ B) $1681 \mathrm { mph }$